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SCHEMATIC DIAGRAM-3 (BASE C.B-3/3 SECTION)
Q Q
3 7 6 3 1 5 1 5 0
BASE C. B 3/3 (MCU/LINE INTERFACE SECTION)
+12V
L501
R501
100uH
D504
22
LAL04
1N4001B
1/2W
J501
C501
470/25
L502
100uH
DC12V
LAL04
R503
2.7
1/8W
+
+
C506
100/25
T E
L
1 3 9 4 2 2 9 6 5 1 3
R210
R208
C206
10K
2K
1/50
1D
TX_AUDIO
T0 BASE C. B 1/3
.
R207
(RF-1) 1D
10K
R209
C205
1.2K
0.47
R211
22K
w w w
VCC1
VCC3
REGULATOR
L503
Q501
100uH
2SC1815BL
LAL02
R502
1K
1/8W
+
+
+
C502
C504
C505
VCC3
0.1
0.1
10/50
D501
+
C503
1N5232B
47/16
5.6V
1/2W
R505
Q502
2.2
L504
2SC1815BL
R509
68uH
1/8W
47K
CHG+
L505
68uH
R504
CHG-
4.7K
1/8W
D502
D503
1N4148
1N4148
R508
Q502
10K
MMBT3904
R507
CONSTANT
100
CURRENT
2W
L_SEIZE
+12V
D201
1N4148
Q201
MMBT3904
L-SEIZE
RY201
8V
RX_AUDIO
R203
68R
1W
!
T201
EI-19
1
4
R206
2.2K
C203
SCR201
0.47
390V
5
250V
(M)
C204
2
3
0.47
R204
47K
R205
68K
D203
IC201
1N4004
LTV817C
1
3
D202
1N4148
2
4
D204
IN5257B
x
33V
a o
y
.
i
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C102
C101
33p
33p
R101
1M
VCC1
X101 4MHz
R129
R102 100K
10K
PAGE
R130 100K
VCC3
R103 15K
SW102
R104 30K
DTMF
R105 62K
CHG_DET
R151 100K
R106 120K
R152 100K
Q503
R107 240K
CHG-DET
R108 470K
Q
Q
VCC1
3
7
6
R132
100K
R351
15K
RSSI_SIG
1B
TO BASE C.B 1/3
(RF-1) 1B
C355
0.01
R212
10K
L_SEIZE
+
C376
100/25
FR201
C377
FUZE
R377
10/50
RX_AUDIO
10 1/2W
22
J201
C201
1
1000P-500V
2
TEL. LINE
3
4
C202
1000P-500V
VCC3
R213
18K
RING_DET
u 1 6 3
-9-
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8
9
2
4
9
VCC3
D107
1N5232B
5.6V
1/2W
R154
390
C106
0.1
C105
+
47/16
R123
L101
100K
100uH
IC101
LAL02
TMP87C405M-1H35
LED101, 103
SE3001DT RED
1
XOUT
VDD
28
C108
0.1
POWER
2
XIN
RESET
27
C104
LED103
1
POWER LED
CHG_DET
3
TEST
P10(INT0)
26
RING_DET
4
P67
P11(INT1)
25
C103
0.47
5
P66
P12(INT2/TC1)
24
7B
RX_DATA
TO BASE C. B 1/3 (RF-1) 7B
6
P65(STOP5)
P13(DV0)
23
IN USE/CHARGE
IN USE/CHARGE
7
P64(STOP4)
P14(PPC)
22
LED101
C107
IN-USECHARGE LED
0.1
8
P63(STOP3)
P15(TC2)
21
D105 1N4148
9
P62(STOP2)
P16
20
TX_DATA
6B
10
P61
P17
19
1C
TX_PWR
TO BASE C. B 2/3 (RF-2) 1C
11
P60
P72
18
4B
STB
12
P77
P73
17
3B
DATA
3
1
5
1
5
0
8
9
13
P76(STOP/INT5)
P74
16
2B
CLK
VSS(VASS)
14
P75
15
1B
BAND
+12V
R376
470
R375
1K
TO BASE C. B 1/3
8B
LINE_OUT
(RF-1) 8B
Q307
D302
MMBT3904
1N4148
R373
C373
R377
0.01
20K
180K
+
D303
1N4148
C378
C372
330p
0.01
Q308
SST3906
Q309
MMBT3904
Q307, 308, 309
LINE-OUT AMP
m
c o
.
8
2
9
9
TONE/PULSE
R124
TONE
100K
3
SW101
1
R125
100K
2
PULSE
VCC1
RED
R128
470
VCC3
R126
470
R120
100K
R118 220p
R117 100K
R116 220p
2
4
9
8
2
9
9
R115 100K
R113 100K
TO BASE C. B 1/3
(RF-1) 3B-6B
R371
10K
DTMF
C371
R372
0.0022
5.1K
SIGNAL
: RX AUDIO
: DTMF
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